ES2197299T3 - CONNECTION ARMOR FOR EXPANSION GLASS FOR HOT SANITARY WATER. - Google Patents

Abstract

The pressure expansion tank is divided by a membrane into a water-filled hollow compartment, and a pressurized gas-filled chamber. The connecting fitment incorporates a suction arrangement creating suction causing water exchange over a flow path with forward (96) and backward (94) paths formed by coaxial ducts. A molded body (26) has a middle part (30) containing an inner duct (46) as part of the backward path ad protruding into the water-flow. an outer duct (42) of the molded body as part of the forward path is connected to the water flow by means of an inlet extending round the middle part.

Description

Connection frame for expansion vessel for domestic hot water

Technical field

Union armor to connect a glass of pressure expansion to a pipe system, in which a water flow, a membrane divides the vessel into a cavity filled with water and a pressurized gas chamber filled with pressurized gas, where the joint reinforcement comprises a suction device adapted to generate an aspiration inside caused by the flow of water to generate, through this aspiration, a flow of water exchange in a flow path parallel to the flow of water and passing through the cavity, a valve being arranged of balls with a valve ball to close the flow path parallel, the joint armor having a basic housing of armor with an entrance and an exit for installation in the pipe system, and a coupling sleeve for the vessel pressure expansion, a through hole being formed between the inlet and outlet, and the connecting sleeve being derived to the pressure expansion vessel from this through hole, a channel of forward flow and a return flow step for the flow forward and the return flow of the flow passage being formed parallel in the connecting sleeve, the ball being arranged ball valve valve in the union sleeve for the vessel pressure expansion between the sealing and bearing means with flow openings, which are aligned with the flow channels front and return and being provided with channels that are aligned in an operational position, with the front flow channel and return and open to the parallel flow path and, in a closing position, close the parallel flow passage.

State of the art

There are drinking water heaters, in which the drinking water to be heated is heated in a closed tank, by example through heat exchange with heating water. During heating, drinking water expands. This expansion It must be taken into consideration. To this end, let out water usually through a membrane safety valve.  This requires an outlet for outgoing expansion water. The volume of expansion water that is lost in this case can reach, in the case of a house of four people, according With the installation and size of the drinking water heater, up to Ten liters per day. This accumulates causing losses considerable water and energy.

Therefore, it is known to connect vessels of expansion with the drinking water heater system, which they receive Expansion water Known devices of this type contain a bubble membrane, which is arranged in a housing filled with compressed air. The edge of a membrane entry hole bubble is attached to the edge of an entrance hole of the Case. The input holes are in communication with the drinking water heater system. In the space between the bubble membrane and the housing is filled compressed gas to through a filling valve.

These expansion vessels are problematic for Drinking water heaters for hygienic reasons. Indeed, They contain a volume of stagnant and unchanged water.

Another problem in such expansion vessels is that it is difficult to maintain and verify such glasses. In operation, the bubble membrane is driven from the inner side with the drinking water that is under service pressure The gas pressure acts on the outer side compressed. The compressed gas pressure in the housing should be verified through the filling valve. But a simple pressure check through pressure measurement in the filling valve in the operating state does not guarantee any conclusion about the working capacity of the glass of expansion, that is, does not indicate if enough gas is contained compressed in the housing. Indeed, through the membrane it maintains a gas pressure, which corresponds to the pressure of Water service Therefore, for the verification of the vessel of expansion must be separated from the drinking water system. Membrane It must be discharged from the water pressure. Only then do you know can reasonably measure the pressure in the filling valve for gas mattress verification compressed.

The document EP-A-0 602 480 describes a glass of expansion for hot drinking water with a cavity closed by middle of a bubble membrane, which is in communication with a drinking water heater. Next to the cavity is a Compressed gas chamber bounded by a housing. The armor of union is configured, for the connection of the cavity with a input and for direct connection of the input with an output, of such that a flow of water exchange is generated through the cavity when hot water is taken. To this end, the armor of union presents a step of direct flow that passes in front of the cavity, between the entrance and the exit, and establishes in this way a flow path that extends, in terms of the circulation, parallel to the direct flow passage and through the cavity. In this parallel flow path a suction device, through which you can generate a aspiration through the flow of drinking water flowing in the direct flow path. Through this aspiration, during drinking water intake, the water exchange flow is generated on the parallel flow path through the cavity in the part of waters below the direct flow path.

In an embodiment of the document EP-A-0 602 430, the entrance and the junction armature outlet are arranged adjacent. Step Direct flow is an opening in a separation wall that Separate the entrance and exit. The union armor contains a forward flow path and a return path of the parallel flow path. The return path ends at a tube appendix of a first structural housing containing a channel section of the return path. The housing structural is inserted into a union tube of a structure of armor base. The tube appendix is projected coaxial to the exit inside the exit. Through the action of a injector is generated an aspiration in the tube appendage during the drinking water

The forward flow path and the return path can be locked at the same time by means of a ball valve. The ball valve ball valve it presents a diametral channel, straight, that is in the return path On both sides of the channel, in the valve ball, notches are formed, so that a camera appears ring between the ball valve and the inner wall of the tube Union. In this annular chamber a channel linked to the inlet, which forms a section of the forward flow path of the parallel flow path. On the ball side of valve, which is away from the pressure expansion vessel, is they seat a second carcass structure in the connection tube. The Second structural housing presents two coaxial channels to each other. The inner channel of these two channels is aligned with the channel Diametral valve ball. The outer channel of these channels is in communication, on the one hand, with the notches of the ball of valve and, therefore, with the annular chamber and, on the other hand, with an entrance of the cavity. The inner channel channel is in communication with an outlet pipe that projects inside the cavity and that is provided with exit holes.

In the known embodiment, the ball of valve is retained between separate bearing rings with spherical concave bearing surfaces. Bearing rings they sit between the structural housings and the ball of valve.

The valve ball is rotated 90º by means of an activation spindle from a service position, in which the forward flow path and the return path are open to a locked position. Activation spindle It contains a longitudinal channel, which is connected to an output to through a valve The longitudinal channel is in communication With the cavity. In the locked position, it can then be emptied the cavity to control the pressure in the chamber filled with gas compressed.

In another embodiment of the document EP-A-0 602 430, the entrance and the output are coaxial arranged. The suction device is a venturi tube.

The document De-A-195 29 959 describes a joint reinforcement for joining the pressure expansion vessel in A network of pipes. The joint reinforcement contains a flow channel main, which forms a part of the pipe network, and a flow path extending parallel to it, through of the pressure expansion vessel cavity. The trajectory of parallel circulation is provided, as in the document EP-A-0 602 430, in the region of the mouth of the return path in the flow channel main with a suction device, which generates a flow of water exchange through the flow path parallel.

On the device according to the document DE-A-195 29 959, the housing Structural structure of the reinforcement is T-shaped. The channel main flow forms the continuous rib of the T. The Parallel flow path is integrated into the arm of the T. In In this case, the parallel flow path is divided by a separation wall on the arm of the T in the flow path Forward and return path. The separation wall is extends to the region of the rib in T. There is planned a hole in the separation wall. In the seating hole a tube body, which forms a part of the device aspiration.

In the T arm of the structural housing of the armor is arranged a ball valve, through which channels that extend can be blocked at the same time adjacent to both sides of the separation wall for the advance and the return of the parallel flow path.

Publication of the invention

The invention has the task of simplifying from the point of view of the construction an armor of union of the guy mentioned at the beginning.

According to the invention, this task is solved in a union of the type mentioned at the beginning because a first structural housing is inserted into the connecting sleeve and it extends to the flow passage, the structural housing having a outer part in the form of envelope, and a coaxial central part with it, the outer part having a thick annular section increased at its end directed towards the ball valve and a tubular section, the annular section being coupled to a projection of the union sleeve drill, the first structural housing carries the suction device adjacent to the flow passage, a gasket O-ring is retained on the annular section, the ball being coupled valve to the O-ring, a second structural housing is located in the connecting sleeve on the side of the ball valve directed towards the pressure expansion vessel, having the second structural housing a tubular central part and a part tubular exterior that coaxially surrounds the central part and that is connected to the central part through radial ribs, the outer part having a cylindrical section and a flange on the side of the ball, defining a bearing surface concave-spherical which is coupled by the ball of valve.

In this binding armor, the trajectory of front flow and return path extend coaxial each other in both structural housings. Valve ball It also has coaxial passage channels. The valve ball does not you are mounted on separate bearing rings but directly between the structural housings. In this way it is simplified in An essential measure of the construction structure.

The configurations of the invention are subject to the dependent claims.

An example is explained in detail below. of embodiment of the invention with different variations with Reference to the corresponding drawings.

Brief description of the drawings

Figure 1 shows a longitudinal section of a union armor for the union of an expansion vessel of Pressure.

Figure 2 shows a fragment of a section longitudinal similar to figure 1, where the ball valve is in Your locked position.

Figure 3 shows a section along the line A - A of figure 1.

Figure 4 shows a section along the line B- B of figure 1.

Figure 5 shows on an enlarged scale and fragmentary a section along the line C - c of the figure one.

Figure 6 shows a view in the direction `` X '' of figure 1.

Figure 7 shows an enlarged detail `` Y '' of figure 1.

Figure 8 shows in a section similar to the Figure 1 a variation of the joint reinforcement.

Figure 9 shows a section of a group of security, which is combined with a joint armor of the present kind.

Figure 10 shows a section along the D-S line of figure 8.

Preferred embodiment of the invention

In figure 1 a housing is designated with 10 structural armor. The structural shell of armor 10 it has an inlet 12 in the form of an inlet tube and an outlet 14 in the form of an outlet tube. Entry 12 and exit 14 are coaxial arranged on opposite sides of the structural housing of armor 10. The structural body of armor 10 presents, in addition, a connection tube 16. The axis of the connection tube 16 is extends perpendicularly to the common axis of input 12 and the Exit 14 approximately in the center between them. Entry 12 and the outlet 14 are linked together by means of a flow passage direct 18. In the embodiment according to figure 1, the input 12, the flow passage 18 and the outlet 14 form practically a piece of continuous tube of essentially constant cross section.

The connecting tube 16 starts from the flow passage 18. The inner wall of the piece of tube 16 forms a step or annular projections 20. In the annular projection 20, recesses are joined radial 22, which are open towards the annular projection 20.

Next to the recesses 22 is formed an opening 24, which connects the connecting sleeve 16 with the passage of flow 18.

A first structural housing 26 is inserted in the connecting sleeve 16. The first structural housing 26 it has an outer part 28 in the form of an envelope and a part central 30 coaxial with it. The outer part 28 has a section annular 32 thickened and a tubular section 34. Section 32 is sits on the annular shoulder 20. The tubular section 34 is recessed in the opening. In the tubular section 34 they are formed integrally radial cams 36, cams 36 are housed in the radial recesses 22. The recesses 22 and cams 36 ensure that the first structural housing 26 can only be introduced in a defined position in the connecting sleeve 16. The part exterior 28 and the central part 30 are joined together by means of radial ribs 38. The central tubular part 30 forms a channel central 40, which is coaxial with an annular channel 42 interrupted by middle of the ribs 38 between the outer part 28 and the part central 30.

The structural housing 28 is projected into the flow passage 18. In this case, the section of the outer part 28, which is projected inside the flow passage 18, is cut inclined along a surface 44. This section ends on the side of entrance approximately with the inner wall of the flow passage 18, while the section extends, on the exit side, up to approximately the axis of the exit. Channel 40 of the central part 30 is angled in the region of the flow passage 18 90 ° in the direction of the exit, so that an extreme section 46 of the channel 40 extends in the direction of the circulation of the current flows from the entrance to the exit. Channel 40 flows through the wall of the outside, on the side of outlet, at flow passage 108 or at outlet 14.

The annular section 32 thickened from the part outer 28 carries an o-ring 48. In addition, the outer part 28 it is tightly closed by means of a ring 50 against the union sleeve 16.

In the O-ring 48 of the outer part 28 find a valve tap configured as valve ball 52. The o-ring 48 is retained by means of a support disk 53. The support disk 53 rests on the O-ring 48 outside the bearing surface, with which the o-ring 48 rests on the valve ball The valve ball 52 sits in the sleeve of union 16.

Valve ball 52 has a diametral channel 54, which is aligned, in the service position represented, with the channel 40 of the central part 30 of the first structural housing 26. The valve ball 52 also has an annular channel 56. The annular channel 56 is arranged coaxial to the diametral channel 54. Between the diametral channel 54 and the annular channel 56 is formed a section tubular 58. Tubular section 58 is connected to the ball of valve 52 remaining through radial ribs 60. This is best shown in figure 2.

In the connecting sleeve 16 is inserted, furthermore, on the outer side of the valve ball 52 a second structural housing 62. The second structural housing 62 has a tubular central part 64 and an outer part 66 surrounding the central part 64. The outer part 66 coaxially surrounds the part central 64. The outer part 66 has a cylindrical section 68 and a tab 70 on the side of the ball. On the inside edge of the flange 70 is formed a tubular bearing surface 72 of concave spherical shape. The bearing surface 72 is supported directly on valve ball 52. Tab 70 presents over its side away from the valve ball 52 ribs 74 which is project perpendicular to the flange surface.

A threaded sleeve-shaped element 76 is screwed into an inner thread 78 of the connecting sleeve 16. The threaded element 76 sits with an edge 80 that projects towards inside on ribs 74 of flange 70. On edge 80 is supports a washer 82. The threaded element 76 has a strainer 84. Between the threaded element 76, the collar 84 and the connecting sleeve 16 a sealing ring 86 is inserted.

The tubular central part 73 of the second housing structural 62 is connected to the outer part 66 by means of radial ribs. The central part 64 is projected from the part exterior 66 and from the connecting sleeve 16. The central part tubular 16 forms an inner channel 90. Between the central part 64 and the outer part 66 is formed an interrupted annular channel 92 by the ribs 88.

The inner channels 90, 54 and 40, 46 are alienated each other and together form a return path 94 for a flow of water exchange through a cavity fill with water from the pressure expansion vessel. A trajectory of front flow 96 is formed by the outer channels or channels annular 42, 56 and 92 that are equally aligned. About the part central 64 sits an outlet pipe, which projects within the pressure expansion vessel cavity, as depicted in EP-A-0 602 430.

Valve ball 52 has a notch 100, whose middle plane extends through the axis of channels 54 and 56. In the notch 100 fit flanges 102, 104 of a spindle of activation 106. Activation spindle 106 extends perpendicular to the axis of the connecting sleeve 16. The spindle of activation 106 is mounted on a side bearing appendix 108 of connection sleeve 16. Activation spindle 106 is closed tightly against bearing appendix 108 by means of two sealing rings 110. Flanges 102, 104 are flanges planes, which extend from the front surface of the spindle of activation 106 axially with respect to the spindle axis of activation 106 in notch 100. Activation spindle 106 is swivel 90º by means of a drive handle 112 of a way that will be described later. Thus, the ball of valve 52 is rotated from the service position represented in Figure 1 to the locked position shown in Figure two.

The drive crank 106 has a longitudinal channel 114. Longitudinal channel 114 is closed in its outer end by means of a plug 116 that can be removed. The longitudinal channel flows into the inner front surface of the drive crank 106 between flanges 102 and 104 in one annular chamber 118. which is formed between the valve ball 52 and the inner wall of the connecting sleeve 16. As can be seen from the figure 2, the valve ball 52 has recesses 120 and 122. These recesses 120 and 122 establish, in the locked position shown in figure 2, a communication between the section of the side of the vessel of the front flow path 96 and the annular chamber 118 and between the cavity of the pressure expansion vessel and the channel longitudinal 11. The front flow path 96 and the return path 94 are locked in the locked position of figure 2, on the side of the armor, from the annular chamber 118 by means of the valve ball 52 and the o-ring 48. When it is then removed in cap 116 that can be removed, can be emptied the water filled cavity of the pressure expansion vessel. Then it is possible, for example, to measure the gas pressure in the pressure expansion vessel regardless of the pressure of the Water.

Drive handle 112 is normally blocked up. To this end, on the bearing flange 108 of the housing structural 10 of the armature is a cam 124. The cam 124 is projected in a recess 126 complementary to it (figure 5) of the drive crank 112. In this way, the crank of drive 112 is retained in the position represented in the Figure 1. For activation of the drive handle 112, the drive crank 112 is pressed against the action of a spring 128 (figure 7) to the right in figure 1. Then, a layered recess 130 (figure 4), which extends over 90º, of the drive crank 112 reaches cam region 124. With this recess 130 can rotate the drive handle 112 90º clockwise in figure 4 towards the housing structural 10 of the frame to the locked position represented in figure 2.

The spring 128 is a helical spring. The dock 128 sits in a circumferential recess 132 of the hand crank drive 106 and rests with one end on an annular shoulder 134 of the drive crank 106. The crank of drive 122 gear with a peripheral recess 136 by middle of the dock 128. The dock 128 rests with its other end in an annular projection 138 of the drive handle 112. The spring 128 tries to press the drive handle 112 towards left in figure 1 and in this case keeps cam 124 in the recess 126. So that the spring 128 cannot press the drive crank outside the activation spindle, it is placed on the drive crank a collar 140, in whose path is provided a stop 142 of the activation spindle 106.

The device according to figure 8 is similar to device of figure 1. The corresponding parts are provided in both figures with the same reference signs.

In the device according to figure 8, the sleeve junction 16 is a separate component, which forms a flange 150 with the first and second structural housing 26 and 62 and with the ball of valve 52 as well as with activation spindle 106 and the crank drive 112. This flange 150 can be screwed in by means of a thread 152 in a conventional installation with a T-piece. The correct positioning of the suction device 154 is secured in this case by means of a Teflon ring (ring Asag)

It is known to ride in facilities closed drinking water heating an armor with a limited of the return flow, with a test valve and a check valve security. Figure 9 depicts an armor 158 of this type with return flow limiter 160, test valve 162 and security valve. An armor of this type, as follows from Figure 10 is provided with a side connection sleeve 166 additional with internal thread. In this union sleeve 166 is screwed a flange 150 according to figure 8, so that the suction device 154 penetrates the passageway.

Claims (15)

1. Union armature to connect a glass of pressure expansion to a pipe system, in which a water flow, a membrane divides the vessel into a cavity filled with water and a pressurized gas chamber filled with pressurized gas, where the joint reinforcement comprises a suction device (46; 154) adapted to generate an aspiration within caused by the flow of water to generate, through this aspiration, a water exchange flow in a flow path parallel to the water flow and passing through the cavity, being arranged a ball valve with a valve ball to close the parallel flow path, - the joint reinforcement having a housing basic armor (10) with an inlet (12) and an outlet (14) for installation in the piping system, and a connecting sleeve (16) for the pressure expansion vessel, being formed a through hole (18) between the inlet (12) and the outlet (14), and the connecting sleeve (16) being derived to the expansion vessel of pressure from this through hole (10), - a forward flow channel and a flow channel of return for the forward flow and the flow of being formed return of the parallel flow passage in the connecting sleeve (16), - the valve ball (52) of the ball valve in the connecting sleeve (16) for the vessel pressure expansion between the sealing and bearing means with flow openings, which are aligned with the flow passages front and return and being provided with steps that are aligned in an operational position, with the front flow channel and return and open to the parallel flow path and, in a closing position, close the parallel flow passage, characterized because - a first structural housing (26) is inserted into the connecting sleeve (16) and extends to the passage of flow (18), the structural housing having an outer part in envelope shape (28), and a central part (30) coaxial with it, the outer part (28) having an annular section of thickness increased (32) at its end directed towards the ball valve (52) and a tubular section (34), the annular section (32) engaging to a projection (20) of the bore of the connecting sleeve (16), - the first structural housing (26) carries the suction device (46; 154) adjacent to the flow passage (18), - an o-ring (48) is retained on the annular section (32), the valve ball (52) being coupled to the seal toric - a second structural housing (62) is located in the union sleeve (16) on the side of the ball valve (52) directed towards the pressure expansion vessel, the second structural housing having a tubular central part (64) and a tubular outer part (66) that coaxially surrounds the central part (64) and which is connected to the central part (64) a through radial ribs (88), having the outer part (66) a cylindrical section (68) and a flange (70) on the side of the ball, defining a bearing surface concave-spherical (72) that is coupled by the ball valve (52). 2. Joint armature as claimed in claim 1, characterized in that a support disk (53) for retaining the O-ring (48) is interposed between the O-ring (48) and the valve ball (52), the coupling being coupled Support disk for the valve ball (52) outside the contact surface of the O-ring (48) and the valve ball (52). 3. Joint armature as claimed in claim 1 or 2, characterized in that the forward flow path (96) is defined by the set of external coaxial channels, and the return flow path (94) is defined by the assembly of internal coaxial channels. 4. Joint reinforcement as indicated in any of claims 1 to 3, characterized in that

(to)

the first housing structural (26) has a central part (30) that contains the channel interior (46), extending the central part in the flow of Water;

(b)

the inner channel (46) of the first structural housing (26), at its located end on the exit side, it forms an angle to extend in the water flow direction; Y

(c)

the outer passage (46) of the first structural housing (26) communicates with the flow of water through an inlet opening that extends around the central part (30).

5. Joint armature as indicated in claim 6, characterized in that

(to)

the outside (28) of the first structural housing (26), which extends into a tubular section in the water flow is cut at an angle with with respect to the axis of this section; extending the section with its part of the wall of falling current more separated within the water flow with its upstream wall part; Y

(b)

the diverted part of the inner channel (46) extends through the part of the wall downstream from the outside (28).

6. Joint reinforcement as indicated in claim 4 or 5, characterized in that the locking cams (36) are provided on the first structural housing (26), the cams being coupled to the radial recesses (22) on the inner surface of the connecting sleeve (16) and ensuring the correct angular insertion of the first structural housing (26). 7. Binding frame as indicated in any of claims 1 to 6, characterized in that the first structural housing is a plastic housing. 8. Binding frame as indicated in any of claims 1 to 7, characterized in that a threaded sleeve-shaped element (76) is screwed into an internal screw thread of the connecting sleeve (16), the end face of this element to the flange (70) of the second structural casing (62), whereby the second structural casing (62) is retained in the connecting sleeve (16). 9. Binding armor as indicated in claim 8, characterized in that

(to)

the element threaded (76) has a flange (80) that projects inwards, which extends substantially up to the central part (66) of the second structural housing (62), and

(b)

a washer (82) it rests on the flange (80) and is guided between the inner wall of the threaded element (76) and the central part (60) of the second structural housing (62).

10. Binding frame as indicated in any of claims 1 to 9, characterized in that

(to)

the valve ball (52) is rotatable at 90º by an activation spindle (106) around of an axis perpendicular to the axis of the connecting sleeve (16) in a closing position, so the trajectories of the forward flow and return flow,

(b)

the spindle of activation (106) has a longitudinal channel (114) that is closed at its outer end separated from the valve ball (52) by a separable buffer (116), and

(c)

the valve ball (52) defines a junction step (120; 122) that in the closed position establishes communication between the water filled cavity of the pressure expansion valve and longitudinal channel (114).

11. Joint armature as claimed in claim 10, characterized in that

(to)

a crank of drive (112) is attached to the activation spindle (106), the crank in the open position of the ball valve is locked against rotation by a cam (124) provided in the housing base of the armor (10), the cam engaging a recess complementary to the drive crank (122),

(b)

the crank of drive (112) is axially guided in a mobile way and is arranged to be pushed against the action of a spring (128), Y

(c)

the crank of drive (112) has a recess (130) that extends to 90º outward from the recess (126), extending the cam into the recess in the state pushed into the crank of drive (112), so the drive crank pushed in (112) is rotatable at 90º in position ball valve closure (52).

12. Joint armature as claimed in claim 10 or 11, characterized in that

(to)

the spindle of activation (106) has diametrically opposed flanges on its extreme face directed towards the valve ball (52) on both sides of the longitudinal channel (114),

(b)

the flanges (102, 104) are coupled to a notch (100) of the valve ball (52), an annular chamber (118) being defined around the ball of valve (52) between the valve ball and the inner surface cylindrical connecting sleeve (16), and

(c)

being defined on joining step for at least one recess (120; 122) on the periphery of the valve ball (52), communication being established between the part of the vessel side of the forward flow path (96) and the annular chamber (118) through this recess.

13. Joint reinforcement as indicated in claims 11 or 12, characterized in that

(to)

the crank of drive (112) is guided on the activation spindle (106) through guide surfaces that have recesses (136; 132) with annular projections (138; 134) facing each other in the drive crank (112) and activation spindle (106),

(b)

a pier helical (128) is arranged in recesses (136; 132) and does stop with annular projections (138; 134); Y

(c)

being planned a collar (140) in one part, cooperating the collar with a stop in the another part to prevent the thrust out of the crank of drive (112) from the activation spindle (106) under the helical spring action (128).

14. Joint armature as set forth in any one of claims 1 to 13, characterized in that the base casing of the frame (10) has an inlet (12) and an outlet (14) aligned with it, the connecting sleeve extending (16) orthogonal to the input (12) and output (14) axis and the suction device extending within the direct flow passage (18). 15. Joint frame as set forth in any of claims 1 to 13, characterized in that the joint sleeve (16) containing the first and second structural housings (26; 62) and the valve ball (16) is a component separated and has means (152) to connect this connecting sleeve (16) with a pipe reinforcement.